Screwdriver bit



FIG. 1 is a perspective view of the screwdriver bit.

FIG. 2 is an end elevational view of the screwdriver bit.

FIG. 3 is a side elevational view of the screwdriver bit along the line 3—3 of FIG. 2; and,

FIG. 4 is a side elevational view of the screwdriver bit along the line 4—4 of FIG. 2. 

The ornamental design for a screwdriver bit, as shown and described. 